Web - Server Web - Server

Discover the mechanisms, protocols and technologies used on the Internet and learn to abuse them!

These challenges are designed to train users on HTML, HTTP and other server side mechanisms. The following series of challenges will cultivate a better understanding of techniques such as : Basic workings of multiple authentication mechanisms, handling form data, inner workings of web applications, etc. ...

Prerequisites:
– Understand HTML.
– Understand the HTTP protocol.
– Ability to manipulate a web browser.

challenges 96 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution Date
pas_valide HTML - Source code 48% 172021 5 g0uZ 5 3 October 2006
pas_valide HTTP - IP restriction bypass 9% 30159 10 Cyrhades 7 23 March 2021
pas_valide HTTP - Open redirect 19% 67742 10 Swissky 10 2 August 2017
pas_valide HTTP - User-agent 24% 85108 10 g0uZ 10 3 October 2006
pas_valide Weak password 31% 111341 10 g0uZ 7 3 October 2006
pas_valide PHP - Command injection 19% 67611 10 sambecks 10 20 September 2017
pas_valide API - Broken Access 2% 5054 15 Nishacid , Mika 3 18 January 2024
pas_valide Backup file 16% 54775 15 g0uZ 10 27 February 2011
pas_valide HTTP - Directory indexing 22% 78282 15 g0uZ 7 7 October 2006
pas_valide HTTP - Headers 16% 55277 15 Arod 9 11 January 2015
pas_valide HTTP - POST 14% 50212 15 Th1b4ud 10 14 August 2018
pas_valide HTTP - Improper redirect 12% 43076 15 Arod 10 26 November 2014
pas_valide HTTP - Verb tampering 14% 46854 15 g0uZ 10 3 February 2011
pas_valide Install files 13% 44272 15 g0uZ 6 7 October 2006
pas_valide Nginx - Alias Misconfiguration 1% 2564 15 .Yo0x 2 27 September 2024
pas_valide Nginx - Root Location Misconfiguration 1% 603 15 .Yo0x 0 27 September 2024
pas_valide API - Mass Assignment 1% 3163 20 Nishacid , Mika 2 18 January 2024
pas_valide CRLF 9% 32099 20 g0uZ 7 31 July 2011
pas_valide File upload - Double extensions 10% 35377 20 g0uZ 10 24 December 2012
pas_valide File upload - MIME type 8% 28446 20 g0uZ 10 26 December 2012
pas_valide Flask - Unsecure session 1% 2856 20 Sanlokii 1 29 November 2023
pas_valide GraphQL - Introspection 2% 3934 20 apges01 4 19 January 2023
pas_valide HTTP - Cookies 13% 46209 20 g0uZ 8 7 October 2006
pas_valide Insecure Code Management 4% 14045 20 Swissky 6 29 September 2019
pas_valide JWT - Introduction 5% 17675 20 Kn0wledge 5 21 August 2019
pas_valide XSS - Server Side 1% 2919 20 Elf 4 23 June 2023
pas_valide Directory traversal 10% 35762 25 g0uZ 3 31 July 2011
pas_valide File upload - Null byte 7% 24257 25 g0uZ 4 26 December 2012
pas_valide JWT - Revoked token 2% 6309 25 ArnC 6 20 March 2020
pas_valide JWT - Weak secret 4% 12259 25 Jrmbt 6 21 August 2019
pas_valide JWT - Unsecure File Signature 1% 2389 25 Nishacid , Mika 3 23 February 2023
pas_valide PHP - assert() 5% 15681 25 Birdy42 10 26 November 2016
pas_valide PHP - Apache configuration 1% 2554 25 erk3 , nemoz 4 8 July 2022
pas_valide PHP - Filters 6% 19947 25 g0uZ 3 27 February 2011
pas_valide PHP - register globals 5% 16053 25 g0uZ 2 8 October 2011
pas_valide PHP - Remote Xdebug 1% 1532 25 mayfly 4 18 March 2020
pas_valide Python - Server-side Template Injection Introduction 2% 4727 25 Podalirius 7 7 September 2021
pas_valide File upload - ZIP 3% 9776 30 ghozt 3 3 August 2017
pas_valide Flask - Development server 1% 1047 30 Sanlokii 1 29 November 2023
pas_valide GraphQL - Injection 1% 835 30 apges01 2 19 January 2023
pas_valide Command injection - Filter bypass 3% 7790 30 sambecks 6 20 September 2017
pas_valide Java - Server-side Template Injection 4% 10838 30 righettod 6 29 November 2015
pas_valide JWT - Public key 2% 3980 30 Jrmbt 5 21 August 2019
pas_valide JWT - Header Injection 1% 1285 30 Nishacid , Mika 2 23 February 2023
pas_valide Local File Inclusion 8% 25905 30 g0uZ 4 2 October 2011
pas_valide Local File Inclusion - Double encoding 4% 13043 30 zM_ 4 13 June 2016
pas_valide Nginx - SSRF Misconfiguration 1% 177 30 .Yo0x 0 27 September 2024
pas_valide Node - Eval 1% 3039 30 Mhd_Root 7 24 February 2021
pas_valide PHP - Loose Comparison 3% 7398 30 ghozt 4 10 January 2018
pas_valide PHP - preg_replace() 3% 9162 30 sambecks 4 2 March 2016
pas_valide PHP - type juggling 3% 8999 30 vic 4 10 March 2016
pas_valide Remote File Inclusion 4% 11979 30 g0uZ 8 25 November 2015
pas_valide SQL injection - Authentication 14% 46798 30 g0uZ 11 27 February 2011
pas_valide SQL injection - Authentication - GBK 3% 10015 30 dvor4x 4 2 December 2015
pas_valide SQL injection - String 7% 22247 30 g0uZ 10 24 December 2012
pas_valide XSLT - Code execution 2% 3793 30 ghozt 5 16 July 2017
pas_valide Elixir - EEx 1% 303 35 lolo42 1 29 November 2023
pas_valide JWT - Unsecure Key Handling 1% 840 35 Nishacid , Mika 5 23 February 2023
pas_valide LDAP injection - Authentication 3% 10520 35 g0uZ 8 26 May 2013
pas_valide Node - Serialize 1% 1330 35 Mhd_Root 2 24 February 2021
pas_valide NoSQL injection - Authentication 3% 7823 35 mastho 8 31 May 2015
pas_valide PHP - Path Truncation 2% 5515 35 Geluchat 6 25 March 2015
pas_valide PHP - Serialization 2% 6824 35 Arod 3 3 February 2014
pas_valide SQL injection - Numeric 5% 15348 35 g0uZ 7 24 December 2012
pas_valide SQL Injection - Routed 2% 5520 35 soka 5 24 December 2016
pas_valide SQL Truncation 2% 6880 35 Geluchat 2 1 May 2015
pas_valide XML External Entity 2% 5746 35 sambecks 2 20 October 2014
pas_valide XPath injection - Authentication 2% 6719 35 g0uZ 6 27 December 2012
pas_valide Yaml - Deserialization 1% 1457 35 Nishacid 2 20 April 2021
pas_valide API - Broken Access 2 1% 545 40 Nishacid , Mika 1 18 January 2024
pas_valide GraphQL - Backend injection 1% 461 40 apges01 1 19 January 2023
pas_valide GraphQL - Mutation 1% 1608 40 CanardMandarin 2 20 October 2020
pas_valide Java - Spring Boot 1% 2382 40 dvor4x 3 24 December 2016
pas_valide Local File Inclusion - Wrappers 2% 3740 40 sambecks 4 2 March 2016
pas_valide PHP - Eval 2% 3713 40 chmod 10 8 November 2018
pas_valide PHP - Eval - Advanced filters bypass 1% 635 40 Podalirius 2 8 July 2022
pas_valide SQL injection - Error 3% 8059 40 sambecks 5 4 March 2015
pas_valide SQL injection - Insert 1% 3244 40 sambecks 4 23 February 2015
pas_valide SQL injection - File reading 2% 6041 40 Arod 3 19 October 2014
pas_valide XPath injection - String 2% 3994 40 g0uZ 5 26 May 2013
pas_valide File upload - Polyglot 1% 484 45 Cyxo 1 8 July 2022
pas_valide NodeJS - Prototype Pollution Bypass 1% 564 45 Worty 1 22 October 2021
pas_valide NoSQL injection - Blind 1% 3095 45 ghozt 6 26 November 2016
pas_valide SQL injection - Time based 2% 5915 45 ycam 4 11 September 2015
pas_valide Java - Custom gadget deserialization 1% 200 50 Elweth 0 28 December 2023
pas_valide NodeJS - vm escape 1% 781 50 Podalirius 1 15 April 2021
pas_valide Server Side Request Forgery 1% 1956 50 sambecks 7 22 June 2018
pas_valide SQL injection - Blind 3% 7845 50 g0uZ 6 27 February 2011
pas_valide LDAP injection - Blind 1% 3528 55 g0uZ 2 8 June 2013
pas_valide PHP - Unserialize overflow 1% 798 55 mayfly 2 4 April 2020
pas_valide PHP - Unserialize Pop Chain 1% 730 55 Worty 2 22 October 2021
pas_valide SQL Injection - Second Order 1% 236 55 k4ndar3c 1 29 November 2023
pas_valide Python - dotenv 1% 66 70 jrjgjk 0 27 September 2024
pas_valide Python - Blind SSTI Filters Bypass 1% 693 75 Podalirius 5 7 September 2021
pas_valide XPath injection - Blind 1% 2407 75 g0uZ 5 27 December 2012
pas_valide SQL injection - Filter bypass 1% 3006 80 sambecks 7 21 July 2014

Challenge Results Challenge Results

Pseudo Challenge Lang Date
acktak Web - Serveur  PHP - Register globals fr 13 April 2025 at 19:15
armoredostrich779 Web - Serveur  HTTP - Redirection invalide fr 13 April 2025 at 19:13
herobrine4770 Web - Serveur  HTML - Code source fr 13 April 2025 at 19:13
tantalus Web - Serveur  File upload - Type MIME fr 13 April 2025 at 19:12
lacampe Web - Serveur  Install files fr 13 April 2025 at 19:11
acktak Web - Serveur  PHP - Filters fr 13 April 2025 at 19:11
mojito99 Web - Server  Backup file en 13 April 2025 at 19:09
R4ZD4N Web - Serveur  HTTP - User-agent fr 13 April 2025 at 19:07
Eno Web - Serveur  Local File Inclusion fr 13 April 2025 at 19:07
Damakov Web - Serveur  SQL injection - Time based fr 13 April 2025 at 19:06